A function with a parameter (**argument**) is a function that has to work with an object "from the outside".
```
int func(int argument)
{
	return argument;
}
```
> Note
>
> A function argument is a local variable created and exists only in the current function.

For example, let's create a function that divides any integer by 2:
```
int func(int argument)
{
	int result = argument / 2;
	return result;
}
```
To use such a function, you need to call it and pass an argument to it:
```cpp
func(10);
```
Here is an example:

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You can pass multiple arguments to a function:

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`func(5, 7)` – calling a function and passing arguments to it. 
Arguments are passed with commas (`,`).

You can also pass arrays:

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In this section, we will learn the structure of a default C++ program.

In this section, we will learn how to manipulate different variables.

In this section, we will learn how to equate and compare variables, and use mathematical and bitwise operators.

In this section, we will learn how to control the flow of our programs.

In this section, we will explore the concept of functions, and how to create and call them.

In this section, we will understand how to allocate memory, how to use memory by pointers help.